Fall fertilization of Holm oak affects N and P dynamics, root growth potential, and post-planting phenology and growth

Table 1 ANOVA P values for nutrient concentration (mg g⁻¹ of N, P, and K) in shoots and roots of Q. ilex for intermediate and final sampling dates

	Control^a	Fertilizer rate (R)	Fertilizer timing (T)	R × T
	P > F	P > F	P > F	P > F
Intermediate sampling
Shoot N	0.011	1.000	1.000	0.341
Root N	0.570	0.595	0.047	0.176
Shoot P	0.000	0.471	0.002	0.471
Root P	0.104	0.746	0.024	0.127
Shoot K	0.035	0.346	0.748	0.429
Root K	0.627	0.856	0.499	0.750
Final sampling
Shoot N	0.452	0.850	0.353	0.850
Root N	0.077	0.002	0.316	0.040
Shoot P	0.001	0.628	0.165	0.628
Root P	0.001	0.001	0.014	0.682
Shoot K	0.076	0.942	0.942	0.612
Root K	0.286	0.055	0.749	0.413

^aP values for the control group correspond to the contrast to compare control mean with the average of all the other treatments means. n = 3 composite samples (five seedlings per replicated tray, three trays) per treatment

ISSN: 1297-966X